Image to Base64 Converter Free Online

Choose an image

Stays entirely in your browser.

Max size (px)

Format

Quality: 80%

Lower quality = shorter code. Not used for PNG.

Base64 data URI

Choose an image to see its Base64 output here.

How to use Image to Base64

Choose an image from your device.
Pick a max size (256 px is a good default) and quality — smaller means shorter code.
Tap "Copy Base64", "Copy <img> tag" or "Copy CSS" and paste it where you need it.

Is Image to Base64 free to use?

Yes. Image to Base64 is completely free, with no sign-up, no daily limit, and no watermark on what you download.

Is my data uploaded to a server?

No. Image to Base64 runs entirely in your browser using JavaScript — nothing you type or upload ever leaves your device.

Will this reduce the quality of my image?

You control the balance between file size and quality with the settings on the page, so you can compare the result before you rely on it.